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Advances, Systems and Applications

Journal of Cloud Computing Cover Image

Table 5 Gradient descent output for costminimization

From: A novel revenue optimization model to address the operation and maintenance cost of a data center

Year New server Power and cooling Elasticity (α) Elasticity (β) Min. Cost
1996 62 5 1.3732 0.0091 56.2716
1997 65 5 1.3729 0.0102 58.0163
1998 62 10 1.3732 0.0091 56.2716
1999 60 10 1.3747 0.0031 55.3465
2000 65 10 1.3729 0.0102 58.0163
2001 55 15 1.3724 0.0123 51.9474
2002 45 15 1.3712 0.0170 45.7922
2003 47 15 1.3745 0.0039 47.5236
2004 50 20 1.3742 0.0049 49.2799
2005 52 20 1.3726 0.0116 50.1856
2006 55 20 1.3724 0.0123 51.9474
2007 56 30 1.3737 0.0069 52.7832
2008 57 30 1.3750 0.0017 53.6839
2009 58 30 1.3722 0.0131 53.7031
2010 59 40 1.3735 0.0080 54.5258
2011 60 40 1.3747 0.0031 55.3465
2012 60 40 1.3747 0.0031 55.3465